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Finding the Fourth Proportional to 551,297,833.76, 760,807,238.88 and 303,795,131.20

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Solution

The fourth proportional to 551,297,833.76, 760,807,238.88 and 303,795,131.20 is: 419,246,223.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,297,833.76 : 760,807,238.88 = 303,795,131.20 : x
  2. Step 2: Convert to fraction form
    551,297,833.76/760,807,238.88 = 303,795,131.20/x
  3. Step 3: Cross multiply
    551,297,833.76x = 760,807,238.88 × 303,795,131.20
  4. Step 4: Simplify right side
    551,297,833.76x = 231,129,534,953,459,328
  5. Step 5: Solve for x
    x = 231,129,534,953,459,328/551,297,833.76
  6. Step 6: Final answer
    x = 419,246,223.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.